PROBLEM TO BE SOLVED: To provide a massager which does not use a complicated mechanism such as a motor, a cam mechanism and a crank mechanism, and is therefore compact and lightweight.SOLUTION: A coil spring 1 composed of a wire of shape-memory alloy is wrapped by an insulating coating member 2. The insulating coating member 2 has a coming-off prevention part projection 2A and is gripped and fixed by an insulating coating member press plate 3 and a base 4. The coil spring 1 is fixed to the base 4 and is connected to a power supply 7 through wiring 5 and a mode switch control unit 6 at a coil spring upper end 1A and a coil spring lower end 1B. Temperature of the coil spring 1 is raised by Joule heat generated by the coil spring 1 itself when the coil spring 1 is conducted, the coil spring 1 is stretched at a point of time when temperature of the coil spring 1 rises to a temperature causing a shape-memory state, and the finger-pressure massage of a human body is performed via the insulating coating member.COPYRIGHT: (C)2013,JPO&INPIT【課題】モータ、カム機構、クランク機構など複雑な機構を用いることなしに、小型、軽量の指圧マッサージ器を提供する。【解決手段】形状記憶合金の線材からなるコイルバネ1は絶縁被覆部材2によって包まれており、絶縁被覆部材2は抜け防止部突起2Aを有し、絶縁被覆部材押さえ板3及びベース4によって挟まれ固定されている。前記コイルバネ1は前記ベース4に固定され、コイルバネ上端1A及びコイルバネ下端1Bにて配線5及びモード切替制御部6を通じて電源7に接続されている。前記コイルバネ1に通電することによって前記コイルバネ1自身が発生するジュール熱で前記コイルバネ1の温度を上昇させ、前記コイルバネ1が形状記憶状態を生じる温度まで上昇した時点でコイルバネ1を伸張させて絶縁被覆部材を介して人体の指圧マッサージを行なう構成とする。【選択図】図1
